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2 years ago

Which energy transformation most likely occurs in a steam iron

Chemistry

1 answer:

balu736 [363]2 years ago

3 0

Electrical energy changes to heat energy

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2c+02=2CO2. The moles of co2 produced when 0.25 moles of O2 react is?

Sophie [7]

<h3>Answer:</h3>

$\displaystyle 0.5 \ mol \ CO_2$

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

Moles
Compounds

<u>Stoichiometry</u>

Using Dimensional Analysis
Analyzing Reactions RxN

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 2C + O₂ → 2CO₂

[Given] 0.25 moles O₂

[Solve] moles CO₂

<u>Step 2: Identify Conversions</u>

[RxN] 1 mol O₂ → 2 mol CO₂

<u>Step 3: Stoichiometry</u>

[DA] Set up: $\displaystyle 0.25 \ moles \ O_2(\frac{2 \ mol \ CO_2}{1 \ mol \ O_2})$
[DA] Multiply/Divide [Cancel out units]: $\displaystyle 0.5 \ mol \ CO_2$

7 0

2 years ago

Which element has 19 electrons surrounding the nuclei of its atoms?

QveST [7]

I think its potassium

5 0

3 years ago

What coefficient should be placed before 02?<br> 2S+ __02 → 2S03

Trava [24]

Explanation:

$\tt{2S+6O_2\implies{2SO_3} }$

5 0

2 years ago

The formula C2H4 can be classified as

blsea [12.9K]

The formula C2H4 can be classified as both a molecular formula and an empirical formula. The answer is number 4.

7 0

3 years ago

Read 2 more answers

What is the single factor that classifies an element as a transition metal?

klasskru [66]

The answer is b) the highest occupied orbital is a “d”orbital.
Transition metals are metals where the highest energy electrons partially fill the d subshells. There are some elements with complete d subshells but on forming cations they have incomplete d subshells.
These transition metals have some properties that are different from the other metals .

7 0

3 years ago